/* Custom CSS for your PHP-MySQL Bootstrap App */

/* Main layout adjustments */
.sidebar {
    width: 250px;
    position: fixed;
    top: 56px; /* Height of navbar */
    left: 0;
    height: calc(100vh - 56px);
    overflow-y: auto;
    z-index: 1000;
}

.main-content {
    margin-left: 250px;
    padding: 20px;
    min-height: calc(100vh - 56px);
}

/* Navigation styling */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.sidebar .nav-link {
    padding: 10px 15px;
    color: rgba(255,255,255,.8) !important;
    border-radius: 5px;
    margin-bottom: 2px;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover {
    background-color: rgba(255,255,255,.1);
    color: white !important;
}

.sidebar .nav-link.active {
    background-color: #0d6efd;
    color: white !important;
}

.sidebar .nav-link i {
    width: 20px;
}

/* Card styling */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border-radius: 10px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    font-weight: 600;
}

/* Table styling */
.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.05);
}

/* Button styling */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

/* Badge styling */
.badge {
    font-weight: 500;
    font-size: 0.75rem;
}

/* Modal styling */
.modal-content {
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.modal-header {
    border-bottom: 1px solid #e9ecef;
    padding: 1.5rem;
}

.modal-title {
    font-weight: 600;
}

/* Form styling */
.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid #ced4da;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus, .form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 56px;
        left: -250px;
        transition: left 0.3s ease;
        z-index: 1050;
    }
    
    .sidebar.show {
        left: 0;
    }
    
    .main-content {
        margin-left: 0;
        padding: 15px;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: 10px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
}

/* Loading spinner */
.loading-spinner {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 9999;
}

.loading-spinner .spinner-border {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Alert styling */
.alert {
    border: none;
    border-radius: 8px;
    font-weight: 500;
}

/* Progress bars */
.progress {
    border-radius: 10px;
    height: 8px;
}

.progress-bar {
    border-radius: 10px;
}

/* Custom scrollbar for sidebar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: #495057;
}

.sidebar::-webkit-scrollbar-thumb {
    background: #6c757d;
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: #adb5bd;
}

/* Animation classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}